10123212899 has 2 divisors, whose sum is σ = 10123212900. Its totient is φ = 10123212898.

The previous prime is 10123212889. The next prime is 10123212907. The reversal of 10123212899 is 99821232101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10123212899 - 2⁸ = 10123212643 is a prime.

It is not a weakly prime, because it can be changed into another prime (10123212809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061606449 + 5061606450.

It is an arithmetic number, because the mean of its divisors is an integer number (5061606450).

Almost surely, 2^10123212899 is an apocalyptic number.

10123212899 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123212899 is an equidigital number, since it uses as much as digits as its factorization.

10123212899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 10123212899 in words is "ten billion, one hundred twenty-three million, two hundred twelve thousand, eight hundred ninety-nine".